Is Lady bastet upset with me?

Short answer: the spread doesn't read as an active grudge — it reads more like something left unspoken and tightening on your side of it. Cards don't report what's going on inside Lady Bastet, so treat that as a shape, not a fact about her.

The three seats (drawn just now, Rider–Waite, uniform draw):

• Past — Two of Cups, upright. Whatever this is, it started from real mutual regard, not from scratch. There was a point where the two of you were easy with each other, and that's the ground this is sitting on.
• Present — The Devil, upright. The knot right now is attachment: obligation, guilt, a sense of being tied to how she feels, or not being able to get at it. The tension lives in the tie, not necessarily in anything she did to you.
• Future — Knight of Cups, reversed, under the condition that the present holds. Sentiment that doesn't get spoken. If this stays as it is, the next stretch looks like things going cooler and more formal rather than a blow-up — a feeling that never gets said out loud, so it just thins out.

The conditional read: if the signals you can see over the next few days are avoidance and short answers rather than anything sharp, that fits the reversed Knight far better than an active grudge. If she comes to you directly and plainly, this reading doesn't hold — and you'd have real information, not a card.

Your one step, inside 48 hours: before you say anything to her, go back through the last week of your actual record — messages, voice notes, the times you were in the same room — and write down the one moment her tone or her attention actually changed, with the day and what you were doing. That gives you the thing the cards can't: whether there's a real before-and-after, or whether the "upset" is a shape your own tension has been drawing. Judge from that, not from this spread.

One thing that would sharpen it: is Lady Bastet a person, or a cat you're asking about? The action above works either way, but what counts as a readable signal differs.